“…This notwithstanding, a substantial degree of co-movement in the four markets is immediately apparent from the chart, which suggests that trends over time are determined by relatively global factors. 29 In this regard, it is worth noting the upward trend exhibited by the four BEIRs since mid-2003, which may reflect increasing concerns among market participants about the upsurge in commodity prices, mainly oil prices, and their impact on future inflation. Second, beyond a substantial co-movement, there seem to be some clear differences in the average level of the BEIRs.…”